I'm a returning user to Ubuntu, I've used it several years ago and now I'm getting back.

I use calibre do manage my e-books collection, and I have a desktop running win7 and my notebook running Ubuntu. All my library is on my desktop, how can I make my Ubuntu's Calibre access my library on my desktop?

Note: I can access my library normaly via file explorer.

When I had windows on this notebook, I needed only to tell calibre that the way is:

\\GUSTAVU-PC\bibliotecado

I don't know what's the equivalent to this on Ubuntu, when I hovered the mouse over the mentioned folder on the file explorer, it gave me a link: